Finding the Fourth Proportional to 5,436.17, 7,501.71 and 3,078.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.17 : 7,501.71 = 3,078.32 : x
2. Step 2: Convert to fraction form
   5,436.17/7,501.71 = 3,078.32/x
3. Step 3: Cross multiply
   5,436.17x = 7,501.71 × 3,078.32
4. Step 4: Simplify right side
   5,436.17x = 23,092,648.78
5. Step 5: Solve for x
   x = 23,092,648.78/5,436.17
6. Step 6: Final answer
   x = 4,247.96